Just flashed an old router with it to play around/connect my XBOX 360 to the internet and now I can't access the admin page. The router appears to be functional/not bricked, but looks like its set to another IP address than the one posted on the DD-WRT Wiki....can't ping it at the wiki indicated address, but my laptop sees something...
Maybe the IP changed between DD-WRT image versions? More likely you just don't have it wired up right though.
Just go to start -> run -> type in 'cmd' -> type in 'ipconfig' the admin page should be the default gateway. And incase you didnt know already the sn/pw for dd-wrt is root/admin iirc.
I have assigned a new ip addy per a suggestion on the ddwrt forums and when I ping it, I get a response, but am still unable to access the admin function. When Iput the address in, I get the "this site timed out error."